Lubricant-feed.



W. H. HOLTBY.

LUBRICANT FEED.

APPLICATION FILED AUG.19. 1912 1,1 17,847. Patented Nov. 17, 1914.

' WITNESSES INVENTOR A TTOH/VEVS THE NORRIS PETERS 60.. FHOTO-LITHQ. WASH/NGTUN. '1 c .UNTTED STA'WENT @FFTCE. it

WILKIE HOB-.ATIO HOLTBY, OF MARTHA, OKLAHOMA, ASSIGNGR 0F ONE-HALF TO R. M. SIMMONS, OF HOBART, OKLAHOMA.

LUBRICANT-FEED.

Specification of Letters Patent.

Patented Nov. it, 1914;

Application filed August 19, 1913. Serial No. 785,589

To all whom it may concern Be it known that I, NILKIE H. HoL'rBY, a citizen of the United States, and a resident of the city of Martha, in the county of Jackson and State of Oklahoma, have invented a new and Improved Lubricant-Feed, of which the following is a full, clear, and exact description.

My invention has for its object to provide means for feeding a. lubricantto a crank case of an internal combustion engine, the construction being such that the lubricant will be maintained at a predetermined level in the crank case and the feed will be positive even when the engine is running at a high rate of speed and the lubricant in the crank case is churned by the crank.

The lubricant feed is constructed with a reservoir having a valve and a float with means for maintaining the lubricant at a pre-determined level in the reservoir; communicating means connects the reservoir with a sleeve and within this sleeve there is a tube leaving an oil space between the sleeve and the tube, the tube being secured at one end in an opening in the crank case and having a head at its other end for engaging the outer end of the sleeve for holding the sleeve in position in the direction of the crank case, there being openings in the tube through which the lubricant flows from the sleeve to the interior of the tube and thence to the crank case. In this way the level of the lubricant in the crank case is maintained by the means for maintaining the lubricant at the said predetermined level in the reservoir. At the outer end of the tube there is a cock for drawing ofi the lubricant when desired.

Additional objects of the invention will appear in the following complete specification in which the preferred form of the invention is disclosed.

In the drawings similar characters of reference indicate corresponding parts in all the views, in which Figure 1 is a sectional view on the line 11 of Fig. 2 with a portion of the reservoir broken away to show its construction; Fig. 2 is a sectional view on the line 2-2 of Fig. 1, and Fig. 3 is a view showing the construction of the tube.

By referring to the drawings, it will be seen that a reservoir 5 is provided, this reservoir being preferably constructed with a glass wall 6 so that the height of the'lubricant contained in the reservoir may be readily seen. reservoir 5, there is an inlet 6 having a valve seat 7, a needle valve 8 being provided for cooperating with the valve seat 7 in the customary manner. The upper end 9 of the needle valve 8 is disposed in a guideway 10 in the inlet 6 which holds the needle valve 8 in operative position at all times. The needle valve 8 is provided with two collars 11 which are spaced apart, the arm 12 of the lever 13 being disposed between these collars 11 for operating the needle valve 8. To the other arm 14 of the lever 13 there is articulated a float 15. The bottom of this reservoir 6 communicatesby means of a pipe 16 with the interior of a sleeve 17 through the opening 18 in the said sleeve. This sleeve 17 has at its inner end 19 a head 20 with an opening 21, the opening 21 being less in diameter than the inner diameter of the central portion of the sleeve 17 so that when the tube 22 is disposed within the sleeve 17 there will be a' lubricant space 23 between the Walls of the sleeve 17 and the tube 22. The tube 22 has a threaded end 2 1 which meshes in the threaded opening 25 in the bushing 26, this bushing 26 having a threaded neck 27 which is disposed through an opening 28 in the crank case 29, and which is held in position by the nut 30 which meshes with the thread on the neck 27. In this manner the tube 22 is held in position relatively to the crank case 29 and has communication with the interior of the crank case. The sleeve 17 is held in the direction of the bushing 26 by means of the nut or head 31 which engages the outer end 32 of the sleeve 17. There is a gasket 33 between the head 20 and the bushing 26 so that when the head 20 is pressed in the direction of the bushing 26, there will be no leakage between the head 20 and the said bushing. There are openings 34.- in the sides of the tube 22 so that the lubricant which flows into the sleeve 17 from the reservoir 5, may flow into the crank case. In the head 31 there is a thread opening 35 in which meshes the threaded end 36 of a cock 37 by which the parts may be readily drained. It will be understood that when the crank case is provided with a bushing 26 held in place by nut 30 and with a cock 37 with its threaded end 36 meshing in the threaded Connected with the top of the Having thus described invention, I

claim as new anddesire to secure by Letters Patent:

1. In a lubricant conveying device, a

sleeve adapted to communicate with a source of lubricant supply, atube of less diameter than the sleeve and disposed within the sleeve with a lubricant space between the walls of the sleeve and the tube, the tube having openings in its Walls and having a threaded end for meshing in a threaded opening in a crank case with which the tube is adapted to communicate and a head on the tube for engaging the sleeve for holding the sleeve in the direction of the crank case.

2. In a lubricant conveying device, a sleeve adaptedto comunicate with a source of lubricant supply, the sleeve having a head at one end with-an opening of less diameter than the inner diameter of the body of the sleeve, a tube adapted to communicate with a crank case and disposed within the sleeve fitting the opening and having a threaded end projecting beyond the opening, the central portion of the tube having openings and being spaced from the central portion of the sleeve, ahead on the other end of the Copies of this patent may be obtained for tube for engaging the other end of the sleeve and a cock at the said other end of the tube.

3.11.1 a lubricant conveying device, a

sleeve adapted to have communication with v i I a source of lubricant supply, the sleeve hav:

less diameter than the inner diameterof the body of the sleeve, a tube adapted to commu- 3 I nicate with a crank case and disposed within the sleeve fitting the opening and having; a threaded end projecting beyond: the opening, the central portion of the tube having ing a head at one end with an opening pf.

openings and being spaced from the centralq portion of the sleeve, a head on the other I end of the tube for engaging the other end of the sleeve, a cock at the said other end of the tube, a bushing for engaging a side of the crank case about an opening therein, a.

neck on the bushing for extendingthrough the last mentioned opening, the neck being operating bushing around the opening.

In testimony whereof I havesign d fi name to this specification in the pres'enceof two subscribmg witnesses.

itnessesz KL. ANDERSON, V; M. HALL.

five cents each, by addressing the Commissioner of Yatents,

Washington, D. C."- r

WILKIE HonA'rro HOLTBY. 

